What? No, Checkpoint definitely boots in SX OS.Thanks but I tried using checkpoint and it didn't boot in Atmosphere. I'm sure it doesn't work in SX OX either.
I am using emunand so the saves are on my SD card. I think the only way I can back up the saves are via SX save manager because that is the only manager that will boot in SX OS. I can get the files but they are in .sav format and I don't think the other save managers read these files when booted in atmosphere.